Final answer:
The first astronomical observatory for astronomy in the Islamic Civilization was the Maraga observatory in Maragheh, Iran.
Step-by-step explanation:
The first astronomical observatory for astronomy in the Islamic Civilization was the Maraga observatory. It was built in Maragheh, Iran, during the 13th century. The Maraga observatory played a significant role in advancing the field of astronomy, particularly in terms of observing stars and accurately measuring celestial objects' positions.